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Nextcloud ContactsNextcloud Contacts photos only sanitized if mime type is all lower case

Risk 22
Severity
4.3
Input Validation
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. The unsanitized SVG is converted to a JavaScript blob (in memory data) that the Avatar can't render. Due to this constellation the missing sanitization does not seem to be exploitable. It is recommended that the Contacts app is upgraded to 5.0.3 or 4.2.4

First published (updated )
CVE-2023-33182

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SecAlerts Pty Ltd.
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